Sandoz山度士牌手表
sandn.沙;沙子;沙滩;黄灰色vt.撒沙;打磨;以沙掩盖
sand sieve grading砂筛分级
sand/dust storm沙尘暴
sand mold pig iron砂型生铁
sandblasted finish喷砂精整
sand particle size砂粒形状
sand strainer core滤渣砂芯
sand-flow method灌砂法
sandblast cylinder喷砂罐
sand- dust storm沙尘暴
sand wave movement沙波移动